Updating Zmbackup version to 1.2.3

Issue lucascbeyeler#59 - New Feature: Enable/Disable mail notification

Issue lucascbeyeler#68 - Now the zmbackup remove the storage if you want

Bugfix - Installer crash if there are more than one entry for the hos…

…tname in /etc/hosts

Bugfix lucascbeyeler#51 - Zmbackup computing wrong size in SQLITE3

Update README.md

Removing full+inc restore because the problems it is having.

Including timeout for wget fail after 5 seconds

Update vars.sh

Bugfix lucascbeyeler#44 - Full restore stop working if you do an alia…

…s/distlist backup